The lens was purchased new in 2009 and the focus motor was replaced in 2010 under warranty by NIKON CANADA and the lens has allegedly had very little use since and there is currently no focus squeal.

These lenses have somewhat of a reputation for problems with the focus motor but being that the motor has been replaced by NIKON does that generally rectify the issue . . . was there just a problem with the original motors . . . or is there a continuing problem with the motor in this lens/motor combo?

I guess what I am asking is the motor likely going to have to be replaced again or is the first replacement going to have rectified the problem.

Any elaboration or comment on this issue would be greatly appreciated.